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engine hunting - marky79 - 18:th-Mar-2018

hi all.
can any one tell me if they have like me, I have a 1.7 d 2012 astra j .
some time`s when the engine is sitting idel the engine give hunting sound and the rev`s go up and down slightly.
the other thing is, sometimes when I get out of the car there is a very strong smell of burning rubber (it`s not the tyres)
but the temp gauge don't go up.

RE: engine hunting - marky79 - 10:th-May-2018

(18:th-Mar-2018, 23:43:04)marky79 Wrote: hi all.
can any one tell me if they have like me, I have a 1.7 d 2012 astra j .
some time`s when the engine is sitting idel the engine give hunting sound and the rev`s go up and down slightly.
the other thing is, sometimes when I get out of the car there is a very strong smell of burning rubber (it`s not the tyres)
but the temp gauge don't go up.

am I the only one with this problem ????

RE: engine hunting - Rusty2009 - 14:th-May-2018

I've noticed the same on the 2.0cdti.

What I have noticed is it seems to do it when the battery is low.

RE: engine hunting - Brnjas - 1:st-Oct-2018

(18:th-Mar-2018, 23:43:04)marky79 Wrote: hi all.
can any one tell me if they have like me, I have a 1.7 d 2012 astra j .
some time`s when the engine is sitting idel the engine give hunting sound and the rev`s go up and down slightly.
the other thing is, sometimes when I get out of the car there is a very strong smell of burning rubber (it`s not the tyres)
but the temp gauge don't go up.

I had the same problem on my astra j 2011, 1.7CDTI except for the smell. Anyway, it was failed 
FUEL PUMP PRESSURE REGULATOR SUCTION CONTROL VALVE, replaced damn thing and now idling normaly.

cheers